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Lecture 2
... representing either a program or data. No record structure is imposed. b) A directory holds the names of other files or directories, hence the file system is hierarchical. c) Input or output devices are treated as special files using the standard file interface. Information is provided from/to the d ...
... representing either a program or data. No record structure is imposed. b) A directory holds the names of other files or directories, hence the file system is hierarchical. c) Input or output devices are treated as special files using the standard file interface. Information is provided from/to the d ...
Linux - Spider
... Boot -- contains the kernel and system map Bin -- contains the basic system binaries Dev -- all the device entries Etc -- can't think of any other place to put it Home -- where all the users live Lib -- system libraries Mnt -- place to mount filesystems Proc -- system information Root -- the root us ...
... Boot -- contains the kernel and system map Bin -- contains the basic system binaries Dev -- all the device entries Etc -- can't think of any other place to put it Home -- where all the users live Lib -- system libraries Mnt -- place to mount filesystems Proc -- system information Root -- the root us ...
Operating System
... d company, re-tooled l d it, and d sold ld MS-DOS (Microsoft Disk Operating System) ...
... d company, re-tooled l d it, and d sold ld MS-DOS (Microsoft Disk Operating System) ...
Course objectives: 1. To learn the fundamentals of Operating
... File Management: Overview, file Organization and access, file directories, File sharing, Record blocking, secondary storage management, File System Security, UNIX file Management. Case Study: Linux system, Design Principles, kernel modules, process management, scheduling, memory management, file sys ...
... File Management: Overview, file Organization and access, file directories, File sharing, Record blocking, secondary storage management, File System Security, UNIX file Management. Case Study: Linux system, Design Principles, kernel modules, process management, scheduling, memory management, file sys ...
Curriculum Group Report-F2011
... Course Description Recommendations – This course covers command line, scripting and lowlevel (C language) system interfaces for Unix. It covers basic commands, shell and other scripting languages as appropriate; and low-level POSIX interfaces in C, including file I/O, process control, inter-process ...
... Course Description Recommendations – This course covers command line, scripting and lowlevel (C language) system interfaces for Unix. It covers basic commands, shell and other scripting languages as appropriate; and low-level POSIX interfaces in C, including file I/O, process control, inter-process ...
document
... Command processor: CCP: was a simple command line interface, patterned after RSTS for the PDP-11. Commands generally took the form of a keyword followed by a list of parameters, separated by spaces. Commands not recognized as part of the built-in commands were assumed to be transient user programs, ...
... Command processor: CCP: was a simple command line interface, patterned after RSTS for the PDP-11. Commands generally took the form of a keyword followed by a list of parameters, separated by spaces. Commands not recognized as part of the built-in commands were assumed to be transient user programs, ...
Unix and shell programming
... The UNIX operating system is a set of programs that act as a link between the computer and the user. The computer programs that allocate the system resources and coordinate all the details of the computer's internals is called the operating system or kernel. Users communicates with the kernel ...
... The UNIX operating system is a set of programs that act as a link between the computer and the user. The computer programs that allocate the system resources and coordinate all the details of the computer's internals is called the operating system or kernel. Users communicates with the kernel ...
Unix Basics - Computer Science
... Standard library: provide standard facilities (abstractions) that everyone needs. Coordinator: allow several things to work together in efficient and fair ways (resource management). ...
... Standard library: provide standard facilities (abstractions) that everyone needs. Coordinator: allow several things to work together in efficient and fair ways (resource management). ...
The SAS System for the UNIX Environment
... immediately rendered in software models that can be quickly developed to demonstrate or test the design. While these models may not have the performance or all the leatures required by the final design, last prototyping allows design changes to be tried out in a small model belore irrevocable decisi ...
... immediately rendered in software models that can be quickly developed to demonstrate or test the design. While these models may not have the performance or all the leatures required by the final design, last prototyping allows design changes to be tried out in a small model belore irrevocable decisi ...
CTE214 Operating Systems Syllabus
... On successful completion of this course: • Students should apply key operating system design concepts (e.g. processes, threads, paging, etc.) to develop successful software systems. • Students should understand and discriminate the strengths and weaknesses of scheduling policies, interprocess commun ...
... On successful completion of this course: • Students should apply key operating system design concepts (e.g. processes, threads, paging, etc.) to develop successful software systems. • Students should understand and discriminate the strengths and weaknesses of scheduling policies, interprocess commun ...
ppt
... • Bday 1991, Linus Torvalds, 80386 processor – v.01, limited devices, no networking, – with proper Unix process support! ...
... • Bday 1991, Linus Torvalds, 80386 processor – v.01, limited devices, no networking, – with proper Unix process support! ...
Hobby Operating System
... Skauen, from 1994 to the early 2000s. Announced to the world in March 2000. ...
... Skauen, from 1994 to the early 2000s. Announced to the world in March 2000. ...
Introduction - Faruk Hadziomerovic
... To use (expensive) CPU during Intensive I/O one needs many jobs ready to run (in memory). So when Job1 needs I/O CPU waiting for data in/out (spooling – Simultaneous Peripheral Operation On Line) Job 2 can run by CPU, or Job3 etc. Consequence: short jobs wait disproportional time to finish due to th ...
... To use (expensive) CPU during Intensive I/O one needs many jobs ready to run (in memory). So when Job1 needs I/O CPU waiting for data in/out (spooling – Simultaneous Peripheral Operation On Line) Job 2 can run by CPU, or Job3 etc. Consequence: short jobs wait disproportional time to finish due to th ...
Operating System Structures
... the code as cleverly as possible, you are, by definition, not smart enough to debug it.” ...
... the code as cleverly as possible, you are, by definition, not smart enough to debug it.” ...
Operating System 10CS53 Executing and Loading User Programs
... An ELF-format binary file consists of a header followed by several page-aligned sections The ELF loader works by reading the header and mapping the sections of the file into separate regions of virtual memory ...
... An ELF-format binary file consists of a header followed by several page-aligned sections The ELF loader works by reading the header and mapping the sections of the file into separate regions of virtual memory ...
UNIX Operating System
... first starting with the target it is going to create. Make looks at each of the target’s dependencies to see if they are listed as targets. It follows the chain of dependencies until it reaches the end of the chain and then begins backing out and executing the commands found in each target's rule. A ...
... first starting with the target it is going to create. Make looks at each of the target’s dependencies to see if they are listed as targets. It follows the chain of dependencies until it reaches the end of the chain and then begins backing out and executing the commands found in each target's rule. A ...
Linux Introduction - Personal Web Pages
... Even versions based on the licensed UNIX source code – May be so “Unix-like” they are certified to bear the “UNIX” trademark ...
... Even versions based on the licensed UNIX source code – May be so “Unix-like” they are certified to bear the “UNIX” trademark ...
Official Syllabus
... The following books give specific details about the internals of Linux and Microsoft Windows. – Linux Kernel Development by Robert Love. – Microsoft Windows Internals (Part 1 and 2) (6th edition) by Mark E. Russinovich and ...
... The following books give specific details about the internals of Linux and Microsoft Windows. – Linux Kernel Development by Robert Love. – Microsoft Windows Internals (Part 1 and 2) (6th edition) by Mark E. Russinovich and ...
Unix
Unix (all-caps UNIX for the trademark) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, developed in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties from the late 1970s, leading to a variety of both academic and commercial variants of Unix from vendors such as the University of California, Berkeley (BSD), Microsoft (Xenix), IBM (AIX) and Sun Microsystems (Solaris). AT&T finally sold its rights in Unix to Novell in the early 1990s, which then sold its Unix business to the Santa Cruz Operation (SCO) in 1995, but the UNIX trademark passed to the industry standards consortium The Open Group, which allows the use of the mark for certified operating systems compliant with the Single UNIX Specification (SUS). Among these is Apple's OS X, which is the Unix version with the largest installed base as of 2014.From the power user's or programmer's perspective, Unix systems are characterized by a modular design that is sometimes called the ""Unix philosophy"", meaning that the operating system provides a set of simple tools that each perform a limited, well-defined function, with a unified filesystem as the main means of communication and a shell scripting and command language to combine the tools to perform complex workflows. Aside from the modular design, Unix also distinguishes itself from its predecessors as the first portable operating system: almost the entire operating system is written in the C programming language that allowed Unix to reach numerous platforms.Many clones of Unix have arisen over the years, of which Linux is the most popular, having overtaken the popularity of SUS-certified Unices on server platforms since its inception in the early 1990s.